Description:
The NTE1632 separates the horizontal and vertical sync pulses from the composite TV video signal and uses them to synchronize vertical and horizontal oscillators. The NTE1632 is supplied in a 18−Lead DIP type package.

FEATUREs:
 Horizontal sync separator & noise inverter
 Horizontal oscillator
 Horizontal phase detector (sync to oscillator)
 Horizontal output stage
 Inhibit of horizontal phase detector & video transmitter identification circuit during vertical oscillator flyback
 Stabilizer & supply circuit for staring the horizontal oscillator & output stage directly from the mains rectifier
 Duty factor of horizontal output pulse is 50% when flyback pulse is absent
 Vertical sync separator
 Vertical comparator with internal 3% precorrection circuit for vertical oscillator/sawtooth generator
 Vertical driver stage
 Vertical blanking pulse generator with external adjustment of pulse duration (50Hz: 21 lines: 60Hz: 17 lines)
 Vertical guard circuit
 Bandgap 6.5V reference voltage for vertical oscillator & comparator
 Synchronized vertical oscillator/sawtooth generator (synchronization inhibited when no video transmitter is detected)
 Time constant switch for phase detector (fast time constant during catching)
 Slow time constant for noise only conditions
 Time constant externally switchable (e.g. fast for VCR)
 Second phase detector for storage compensation of horizontal deflection stage
 Sandcastle pulse generator (3 levels)
 Video transmitter identification circuit

Internal circuit for 3% parabolic precorrection of the oscillator/sawtooth generator. Comparator supplied with precorrected sawtooth & external feedback input